LM3S317 Luminary Micro, Inc, LM3S317 Datasheet - Page 30

• Manufacturer Part Number: LM3S317
• Description: Lm3s317 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Architectural Overview
1.4.7.3
1.4.8
30
The LMI JTAG controller works with the ARM JTAG controller built into the Cortex-M3 core. This is
implemented by multiplexing the TDO outputs from both JTAG controllers. ARM JTAG instructions
select the ARM TDO output while LMI JTAG instructions select the LMI TDO outputs. The
multiplexer is controlled by the LMI JTAG controller, which has comprehensive programming for
the ARM, LMI, and unimplemented JTAG instructions.
System Control and Clocks (Section 6 on page 50)
System control determines the overall operation of the device. It provides information about the
device, controls the clocking of the device and individual peripherals, and handles reset detection
and reporting.
Hardware Details
Details on the pins and package can be found in the following sections:
Section 16, “Pin Diagram,” on page 344
Section 17, “Signal Tables,” on page 345
Section 18, “Operating Characteristics,” on page 355
Section 19, “Electrical Characteristics,” on page 356
Section 20, “Package Information,” on page 369
Preliminary
February 6, 2007